Search for CP violation through an amplitude analysis of D0 → K+K−π+π− decays

被引：0

作者：

R. Aaij

C. Abellán Beteta

B. Adeva

M. Adinolfi

C. A. Aidala

Z. Ajaltouni

S. Akar

P. Albicocco

J. Albrecht

F. Alessio

M. Alexander

A. Alfonso Albero

G. Alkhazov

P. Alvarez Cartelle

A. A. Alves

S. Amato

S. Amerio

Y. Amhis

L. An

L. Anderlini

G. Andreassi

M. Andreotti

J. E. Andrews

F. Archilli

J. Arnau Romeu

A. Artamonov

M. Artuso

K. Arzymatov

E. Aslanides

M. Atzeni

B. Audurier

S. Bachmann

J. J. Back

S. Baker

V. Balagura

W. Baldini

A. Baranov

R. J. Barlow

G. C. Barrand

S. Barsuk

W. Barter

M. Bartolini

F. Baryshnikov

V. Batozskaya

B. Batsukh

A. Battig

V. Battista

A. Bay

J. Beddow

F. Bedeschi

机构：

[1] Centro Brasileiro de Pesquisas Físicas (CBPF),I. Physikalisches Institut

[2] Universidade Federal do Rio de Janeiro (UFRJ),Fakultät Physik

[3] Center for High Energy Physics,Physikalisches Institut

[4] Tsinghua University,School of Physics

[5] University of Chinese Academy of Sciences,ICCUB

[6] Institute Of High Energy Physics (ihep),Instituto Galego de Física de Altas Enerxías (IGFAE)

[7] Univ. Grenoble Alpes,Physik

[8] Univ. Savoie Mont Blanc,Institut

[9] CNRS,H.H. Wills Physics Laboratory

[10] IN2P3-LAPP,Cavendish Laboratory

[11] Université Clermont Auvergne,Department of Physics

[12] CNRS/IN2P3,School of Physics and Astronomy

[13] LPC,School of Physics and Astronomy

[14] Aix Marseille Univ,Oliver Lodge Laboratory

[15] CNRS/IN2P3,School of Physics and Astronomy

[16] CPPM,Department of Physics

[17] LAL,School of Physics and Technology

[18] Univ. Paris-Sud,Institute of Particle Physics

[19] CNRS/IN2P3,Departamento de Fisica

[20] Université Paris-Saclay,Institut für Physik

[21] LPNHE,Van Swinderen Institute

[22] Sorbonne Université,LIFAELS, La Salle

[23] Paris Diderot Sorbonne Paris Cité,H.H. Wills Physics Laboratory

[24] CNRS/IN2P3,School of Physics and Information Technology

[25] RWTH Aachen University,Physics and Micro Electronic College

[26] Technische Universität Dortmund,undefined

[27] Max-Planck-Institut für Kernphysik (MPIK),undefined

[28] Ruprecht-Karls-Universität Heidelberg,undefined

[29] University College Dublin,undefined

[30] INFN Sezione di Bari,undefined

[31] INFN Sezione di Bologna,undefined

[32] INFN Sezione di Ferrara,undefined

[33] INFN Sezione di Firenze,undefined

[34] INFN Laboratori Nazionali di Frascati,undefined

[35] INFN Sezione di Genova,undefined

[36] INFN Sezione di Milano-Bicocca,undefined

[37] INFN Sezione di Milano,undefined

[38] INFN Sezione di Cagliari,undefined

[39] INFN Sezione di Padova,undefined

[40] INFN Sezione di Pisa,undefined

[41] INFN Sezione di Roma Tor Vergata,undefined

[42] INFN Sezione di Roma La Sapienza,undefined

[43] Nikhef National Institute for Subatomic Physics,undefined

[44] Nikhef National Institute for Subatomic Physics and VU University Amsterdam,undefined

[45] Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences,undefined

[46] AGH — University of Science and Technology,undefined

[47] Faculty of Physics and Applied Computer Science,undefined

[48] National Center for Nuclear Research (NCBJ),undefined

[49] Horia Hulubei National Institute of Physics and Nuclear Engineering,undefined

[50] Petersburg Nuclear Physics Institute (PNPI),undefined

来源：

Journal of High Energy Physics | / 2019卷

关键词：

Charm physics; CP violation; Flavor physics; Hadron-Hadron scattering (experiments);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A search for CP violation in the Cabibbo-suppressed D0 → K+K−π+π− decay mode is performed using an amplitude analysis. The measurement uses a sample of pp collisions recorded by the LHCb experiment during 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb−1. The D0 mesons are reconstructed from semileptonic b-hadron decays into D0μ−X final states. The selected sample contains more than 160 000 signal decays, allowing the most precise amplitude modelling of this D0 decay to date. The obtained amplitude model is used to perform the search for CP violation. The result is compatible with CP symmetry, with a sensitivity ranging from 1% to 15% depending on the amplitude considered. [graphic not available: see fulltext]

引用

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